diff --git a/crates/ruff_linter/src/rules/pep8_naming/mod.rs b/crates/ruff_linter/src/rules/pep8_naming/mod.rs
index ff73c6d1ebbcfb..5c200626be92f9 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/mod.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/mod.rs
@@ -12,7 +12,7 @@ mod tests {
 
     use crate::registry::Rule;
     use crate::rules::pep8_naming;
-    use crate::settings::types::IdentifierPattern;
+    use crate::rules::pep8_naming::settings::IgnoreNames;
     use crate::test::test_path;
     use crate::{assert_messages, settings};
 
@@ -148,12 +148,13 @@ mod tests {
             PathBuf::from_iter(["pep8_naming", "ignore_names", path]).as_path(),
             &settings::LinterSettings {
                 pep8_naming: pep8_naming::settings::Settings {
-                    ignore_names: vec![
-                        IdentifierPattern::new("*allowed*").unwrap(),
-                        IdentifierPattern::new("*Allowed*").unwrap(),
-                        IdentifierPattern::new("*ALLOWED*").unwrap(),
-                        IdentifierPattern::new("BA").unwrap(), // For N817.
-                    ],
+                    ignore_names: IgnoreNames::from_patterns([
+                        "*allowed*".to_string(),
+                        "*Allowed*".to_string(),
+                        "*ALLOWED*".to_string(),
+                        "BA".to_string(), // For N817.
+                    ])
+                    .unwrap(),
                     ..Default::default()
                 },
                 ..settings::LinterSettings::for_rule(rule_code)
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_acronym.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_acronym.rs
index 29b746db208fc6..cdf01805102dd9 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_acronym.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_acronym.rs
@@ -6,7 +6,7 @@ use ruff_python_stdlib::str::{self};
 use ruff_text_size::Ranged;
 
 use crate::rules::pep8_naming::helpers;
-use crate::settings::types::IdentifierPattern;
+use crate::rules::pep8_naming::settings::IgnoreNames;
 
 /// ## What it does
 /// Checks for `CamelCase` imports that are aliased as acronyms.
@@ -54,20 +54,17 @@ pub(crate) fn camelcase_imported_as_acronym(
     asname: &str,
     alias: &Alias,
     stmt: &Stmt,
-    ignore_names: &[IdentifierPattern],
+    ignore_names: &IgnoreNames,
 ) -> Option<Diagnostic> {
-    if ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(asname))
-    {
-        return None;
-    }
-
     if helpers::is_camelcase(name)
         && !str::is_cased_lowercase(asname)
         && str::is_cased_uppercase(asname)
         && helpers::is_acronym(name, asname)
     {
+        // Ignore any explicitly-allowed names.
+        if ignore_names.matches(name) {
+            return None;
+        }
         let mut diagnostic = Diagnostic::new(
             CamelcaseImportedAsAcronym {
                 name: name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_constant.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_constant.rs
index 651403e1f293dd..f5763ab1ee0f14 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_constant.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_constant.rs
@@ -6,7 +6,7 @@ use ruff_python_stdlib::str::{self};
 use ruff_text_size::Ranged;
 
 use crate::rules::pep8_naming::helpers;
-use crate::settings::types::IdentifierPattern;
+use crate::rules::pep8_naming::settings::IgnoreNames;
 
 /// ## What it does
 /// Checks for `CamelCase` imports that are aliased to constant-style names.
@@ -51,20 +51,17 @@ pub(crate) fn camelcase_imported_as_constant(
     asname: &str,
     alias: &Alias,
     stmt: &Stmt,
-    ignore_names: &[IdentifierPattern],
+    ignore_names: &IgnoreNames,
 ) -> Option<Diagnostic> {
-    if ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(name))
-    {
-        return None;
-    }
-
     if helpers::is_camelcase(name)
         && !str::is_cased_lowercase(asname)
         && str::is_cased_uppercase(asname)
         && !helpers::is_acronym(name, asname)
     {
+        // Ignore any explicitly-allowed names.
+        if ignore_names.matches(asname) {
+            return None;
+        }
         let mut diagnostic = Diagnostic::new(
             CamelcaseImportedAsConstant {
                 name: name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_lowercase.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_lowercase.rs
index 84aa326331bc94..5a3d9e0f6d4410 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_lowercase.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/camelcase_imported_as_lowercase.rs
@@ -5,7 +5,7 @@ use ruff_macros::{derive_message_formats, violation};
 use ruff_text_size::Ranged;
 
 use crate::rules::pep8_naming::helpers;
-use crate::settings::types::IdentifierPattern;
+use crate::rules::pep8_naming::settings::IgnoreNames;
 
 /// ## What it does
 /// Checks for `CamelCase` imports that are aliased to lowercase names.
@@ -50,16 +50,13 @@ pub(crate) fn camelcase_imported_as_lowercase(
     asname: &str,
     alias: &Alias,
     stmt: &Stmt,
-    ignore_names: &[IdentifierPattern],
+    ignore_names: &IgnoreNames,
 ) -> Option<Diagnostic> {
-    if ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(asname))
-    {
-        return None;
-    }
-
     if helpers::is_camelcase(name) && ruff_python_stdlib::str::is_cased_lowercase(asname) {
+        // Ignore any explicitly-allowed names.
+        if ignore_names.matches(asname) {
+            return None;
+        }
         let mut diagnostic = Diagnostic::new(
             CamelcaseImportedAsLowercase {
                 name: name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/constant_imported_as_non_constant.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/constant_imported_as_non_constant.rs
index 6d85174bbc2687..d398a342a088ca 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/constant_imported_as_non_constant.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/constant_imported_as_non_constant.rs
@@ -1,11 +1,10 @@
-use ruff_python_ast::{Alias, Stmt};
-
 use ruff_diagnostics::{Diagnostic, Violation};
 use ruff_macros::{derive_message_formats, violation};
+use ruff_python_ast::{Alias, Stmt};
 use ruff_python_stdlib::str;
 use ruff_text_size::Ranged;
 
-use crate::settings::types::IdentifierPattern;
+use crate::rules::pep8_naming::settings::IgnoreNames;
 
 /// ## What it does
 /// Checks for constant imports that are aliased to non-constant-style
@@ -51,16 +50,13 @@ pub(crate) fn constant_imported_as_non_constant(
     asname: &str,
     alias: &Alias,
     stmt: &Stmt,
-    ignore_names: &[IdentifierPattern],
+    ignore_names: &IgnoreNames,
 ) -> Option<Diagnostic> {
-    if ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(name))
-    {
-        return None;
-    }
-
     if str::is_cased_uppercase(name) && !str::is_cased_uppercase(asname) {
+        // Ignore any explicitly-allowed names.
+        if ignore_names.matches(asname) {
+            return None;
+        }
         let mut diagnostic = Diagnostic::new(
             ConstantImportedAsNonConstant {
                 name: name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/dunder_function_name.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/dunder_function_name.rs
index 7089ed2d7dfe9c..5fd7846ccb0675 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/dunder_function_name.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/dunder_function_name.rs
@@ -6,7 +6,7 @@ use ruff_python_ast::identifier::Identifier;
 use ruff_python_semantic::analyze::visibility;
 use ruff_python_semantic::{Scope, ScopeKind};
 
-use crate::settings::types::IdentifierPattern;
+use crate::rules::pep8_naming::settings::IgnoreNames;
 
 /// ## What it does
 /// Checks for functions with "dunder" names (that is, names with two
@@ -47,7 +47,7 @@ pub(crate) fn dunder_function_name(
     scope: &Scope,
     stmt: &Stmt,
     name: &str,
-    ignore_names: &[IdentifierPattern],
+    ignore_names: &IgnoreNames,
 ) -> Option<Diagnostic> {
     if matches!(scope.kind, ScopeKind::Class(_)) {
         return None;
@@ -59,12 +59,9 @@ pub(crate) fn dunder_function_name(
     if matches!(scope.kind, ScopeKind::Module) && (name == "__getattr__" || name == "__dir__") {
         return None;
     }
-    if ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(name))
-    {
+    // Ignore any explicitly-allowed names.
+    if ignore_names.matches(name) {
         return None;
     }
-
     Some(Diagnostic::new(DunderFunctionName, stmt.identifier()))
 }
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/error_suffix_on_exception_name.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/error_suffix_on_exception_name.rs
index 74bb9de5311082..0b3cf3925174e3 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/error_suffix_on_exception_name.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/error_suffix_on_exception_name.rs
@@ -4,7 +4,7 @@ use ruff_diagnostics::{Diagnostic, Violation};
 use ruff_macros::{derive_message_formats, violation};
 use ruff_python_ast::identifier::Identifier;
 
-use crate::settings::types::IdentifierPattern;
+use crate::rules::pep8_naming::settings::IgnoreNames;
 
 /// ## What it does
 /// Checks for custom exception definitions that omit the `Error` suffix.
@@ -47,7 +47,7 @@ pub(crate) fn error_suffix_on_exception_name(
     class_def: &Stmt,
     arguments: Option<&Arguments>,
     name: &str,
-    ignore_names: &[IdentifierPattern],
+    ignore_names: &IgnoreNames,
 ) -> Option<Diagnostic> {
     if name.ends_with("Error") {
         return None;
@@ -65,10 +65,8 @@ pub(crate) fn error_suffix_on_exception_name(
         return None;
     }
 
-    if ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(name))
-    {
+    // Ignore any explicitly-allowed names.
+    if ignore_names.matches(name) {
         return None;
     }
 
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_argument_name.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_argument_name.rs
index 04ce6dab2abcf8..5856a03f4ecb79 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_argument_name.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_argument_name.rs
@@ -5,7 +5,7 @@ use ruff_macros::{derive_message_formats, violation};
 use ruff_python_stdlib::str;
 use ruff_text_size::Ranged;
 
-use crate::settings::types::IdentifierPattern;
+use crate::rules::pep8_naming::settings::IgnoreNames;
 
 /// ## What it does
 /// Checks for argument names that do not follow the `snake_case` convention.
@@ -52,15 +52,13 @@ impl Violation for InvalidArgumentName {
 pub(crate) fn invalid_argument_name(
     name: &str,
     parameter: &Parameter,
-    ignore_names: &[IdentifierPattern],
+    ignore_names: &IgnoreNames,
 ) -> Option<Diagnostic> {
-    if ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(name))
-    {
-        return None;
-    }
     if !str::is_lowercase(name) {
+        // Ignore any explicitly-allowed names.
+        if ignore_names.matches(name) {
+            return None;
+        }
         return Some(Diagnostic::new(
             InvalidArgumentName {
                 name: name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_class_name.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_class_name.rs
index 005f04305cf28f..ad9749e3aba58c 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_class_name.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_class_name.rs
@@ -4,7 +4,7 @@ use ruff_diagnostics::{Diagnostic, Violation};
 use ruff_macros::{derive_message_formats, violation};
 use ruff_python_ast::identifier::Identifier;
 
-use crate::settings::types::IdentifierPattern;
+use crate::rules::pep8_naming::settings::IgnoreNames;
 
 /// ## What it does
 /// Checks for class names that do not follow the `CamelCase` convention.
@@ -52,17 +52,14 @@ impl Violation for InvalidClassName {
 pub(crate) fn invalid_class_name(
     class_def: &Stmt,
     name: &str,
-    ignore_names: &[IdentifierPattern],
+    ignore_names: &IgnoreNames,
 ) -> Option<Diagnostic> {
-    if ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(name))
-    {
-        return None;
-    }
-
     let stripped = name.strip_prefix('_').unwrap_or(name);
     if !stripped.chars().next().is_some_and(char::is_uppercase) || stripped.contains('_') {
+        // Ignore any explicitly-allowed names.
+        if ignore_names.matches(name) {
+            return None;
+        }
         return Some(Diagnostic::new(
             InvalidClassName {
                 name: name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_first_argument_name_for_class_method.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_first_argument_name_for_class_method.rs
index 3f362dc0fd9d6c..ce6e75ea3c0f37 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_first_argument_name_for_class_method.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_first_argument_name_for_class_method.rs
@@ -91,13 +91,7 @@ pub(crate) fn invalid_first_argument_name_for_class_method(
         .or_else(|| parameters.args.first())
     {
         if &parameter.name != "cls" {
-            if checker
-                .settings
-                .pep8_naming
-                .ignore_names
-                .iter()
-                .any(|ignore_name| ignore_name.matches(name))
-            {
+            if checker.settings.pep8_naming.ignore_names.matches(name) {
                 return None;
             }
             return Some(Diagnostic::new(
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_first_argument_name_for_method.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_first_argument_name_for_method.rs
index c3c6322f1d4f35..1407ef08427903 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_first_argument_name_for_method.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_first_argument_name_for_method.rs
@@ -86,13 +86,7 @@ pub(crate) fn invalid_first_argument_name_for_method(
     if &arg.parameter.name == "self" {
         return None;
     }
-    if checker
-        .settings
-        .pep8_naming
-        .ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(name))
-    {
+    if checker.settings.pep8_naming.ignore_names.matches(name) {
         return None;
     }
     Some(Diagnostic::new(
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_function_name.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_function_name.rs
index daac30bcd2141f..0a10458f6d42f3 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_function_name.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_function_name.rs
@@ -7,7 +7,7 @@ use ruff_python_semantic::analyze::visibility;
 use ruff_python_semantic::SemanticModel;
 use ruff_python_stdlib::str;
 
-use crate::settings::types::IdentifierPattern;
+use crate::rules::pep8_naming::settings::IgnoreNames;
 
 /// ## What it does
 /// Checks for functions names that do not follow the `snake_case` naming
@@ -60,17 +60,9 @@ pub(crate) fn invalid_function_name(
     stmt: &Stmt,
     name: &str,
     decorator_list: &[Decorator],
-    ignore_names: &[IdentifierPattern],
+    ignore_names: &IgnoreNames,
     semantic: &SemanticModel,
 ) -> Option<Diagnostic> {
-    // Ignore any explicitly-ignored function names.
-    if ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(name))
-    {
-        return None;
-    }
-
     // Ignore any function names that are already lowercase.
     if str::is_lowercase(name) {
         return None;
@@ -85,6 +77,11 @@ pub(crate) fn invalid_function_name(
         return None;
     }
 
+    // Ignore any explicitly-allowed names.
+    if ignore_names.matches(name) {
+        return None;
+    }
+
     Some(Diagnostic::new(
         InvalidFunctionName {
             name: name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_module_name.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_module_name.rs
index 4d64c0c34d96f6..f43c93b31804b3 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_module_name.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/invalid_module_name.rs
@@ -6,7 +6,7 @@ use ruff_macros::{derive_message_formats, violation};
 use ruff_python_stdlib::identifiers::{is_migration_name, is_module_name};
 use ruff_text_size::TextRange;
 
-use crate::settings::types::IdentifierPattern;
+use crate::rules::pep8_naming::settings::IgnoreNames;
 
 /// ## What it does
 /// Checks for module names that do not follow the `snake_case` naming
@@ -50,7 +50,7 @@ impl Violation for InvalidModuleName {
 pub(crate) fn invalid_module_name(
     path: &Path,
     package: Option<&Path>,
-    ignore_names: &[IdentifierPattern],
+    ignore_names: &IgnoreNames,
 ) -> Option<Diagnostic> {
     if !path
         .extension()
@@ -66,13 +66,6 @@ pub(crate) fn invalid_module_name(
             path.file_stem().unwrap().to_string_lossy()
         };
 
-        if ignore_names
-            .iter()
-            .any(|ignore_name| ignore_name.matches(&module_name))
-        {
-            return None;
-        }
-
         // As a special case, we allow files in `versions` and `migrations` directories to start
         // with a digit (e.g., `0001_initial.py`), to support common conventions used by Django
         // and other frameworks.
@@ -81,7 +74,12 @@ pub(crate) fn invalid_module_name(
         } else {
             is_module_name(&module_name)
         };
+
         if !is_valid_module_name {
+            // Ignore any explicitly-allowed names.
+            if ignore_names.matches(&module_name) {
+                return None;
+            }
             return Some(Diagnostic::new(
                 InvalidModuleName {
                     name: module_name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/lowercase_imported_as_non_lowercase.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/lowercase_imported_as_non_lowercase.rs
index 9c0491176c93d3..1f5d9a7a2b1951 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/lowercase_imported_as_non_lowercase.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/lowercase_imported_as_non_lowercase.rs
@@ -1,11 +1,10 @@
-use ruff_python_ast::{Alias, Stmt};
-
 use ruff_diagnostics::{Diagnostic, Violation};
 use ruff_macros::{derive_message_formats, violation};
+use ruff_python_ast::{Alias, Stmt};
 use ruff_python_stdlib::str;
 use ruff_text_size::Ranged;
 
-use crate::settings::types::IdentifierPattern;
+use crate::rules::pep8_naming::settings::IgnoreNames;
 
 /// ## What it does
 /// Checks for lowercase imports that are aliased to non-lowercase names.
@@ -50,17 +49,14 @@ pub(crate) fn lowercase_imported_as_non_lowercase(
     asname: &str,
     alias: &Alias,
     stmt: &Stmt,
-    ignore_names: &[IdentifierPattern],
+    ignore_names: &IgnoreNames,
 ) -> Option<Diagnostic> {
-    if ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(asname))
-    {
-        return None;
-    }
-
     if !str::is_cased_uppercase(name) && str::is_cased_lowercase(name) && !str::is_lowercase(asname)
     {
+        // Ignore any explicitly-allowed names.
+        if ignore_names.matches(asname) {
+            return None;
+        }
         let mut diagnostic = Diagnostic::new(
             LowercaseImportedAsNonLowercase {
                 name: name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/mixed_case_variable_in_class_scope.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/mixed_case_variable_in_class_scope.rs
index 43269ecd91ae23..6ebed08650a618 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/mixed_case_variable_in_class_scope.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/mixed_case_variable_in_class_scope.rs
@@ -57,15 +57,6 @@ pub(crate) fn mixed_case_variable_in_class_scope(
     name: &str,
     arguments: Option<&Arguments>,
 ) {
-    if checker
-        .settings
-        .pep8_naming
-        .ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(name))
-    {
-        return;
-    }
     if !helpers::is_mixed_case(name) {
         return;
     }
@@ -78,6 +69,10 @@ pub(crate) fn mixed_case_variable_in_class_scope(
         return;
     }
 
+    if checker.settings.pep8_naming.ignore_names.matches(name) {
+        return;
+    }
+
     checker.diagnostics.push(Diagnostic::new(
         MixedCaseVariableInClassScope {
             name: name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/mixed_case_variable_in_global_scope.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/mixed_case_variable_in_global_scope.rs
index b08aeb2a79dab9..383e7c260831a0 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/mixed_case_variable_in_global_scope.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/mixed_case_variable_in_global_scope.rs
@@ -62,16 +62,6 @@ impl Violation for MixedCaseVariableInGlobalScope {
 
 /// N816
 pub(crate) fn mixed_case_variable_in_global_scope(checker: &mut Checker, expr: &Expr, name: &str) {
-    if checker
-        .settings
-        .pep8_naming
-        .ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(name))
-    {
-        return;
-    }
-
     if !helpers::is_mixed_case(name) {
         return;
     }
@@ -81,6 +71,10 @@ pub(crate) fn mixed_case_variable_in_global_scope(checker: &mut Checker, expr: &
         return;
     }
 
+    if checker.settings.pep8_naming.ignore_names.matches(name) {
+        return;
+    }
+
     checker.diagnostics.push(Diagnostic::new(
         MixedCaseVariableInGlobalScope {
             name: name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/rules/non_lowercase_variable_in_function.rs b/crates/ruff_linter/src/rules/pep8_naming/rules/non_lowercase_variable_in_function.rs
index 7671b0b3ef59bb..be992b13af8ec1 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/rules/non_lowercase_variable_in_function.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/rules/non_lowercase_variable_in_function.rs
@@ -66,17 +66,6 @@ pub(crate) fn non_lowercase_variable_in_function(checker: &mut Checker, expr: &E
         return;
     }
 
-    // Ignore explicitly-allowed names.
-    if checker
-        .settings
-        .pep8_naming
-        .ignore_names
-        .iter()
-        .any(|ignore_name| ignore_name.matches(name))
-    {
-        return;
-    }
-
     let parent = checker.semantic().current_statement();
     if helpers::is_named_tuple_assignment(parent, checker.semantic())
         || helpers::is_typed_dict_assignment(parent, checker.semantic())
@@ -87,6 +76,11 @@ pub(crate) fn non_lowercase_variable_in_function(checker: &mut Checker, expr: &E
         return;
     }
 
+    // Ignore explicitly-allowed names.
+    if checker.settings.pep8_naming.ignore_names.matches(name) {
+        return;
+    }
+
     checker.diagnostics.push(Diagnostic::new(
         NonLowercaseVariableInFunction {
             name: name.to_string(),
diff --git a/crates/ruff_linter/src/rules/pep8_naming/settings.rs b/crates/ruff_linter/src/rules/pep8_naming/settings.rs
index 1a64557a6d2ad5..7ad3830c8107f3 100644
--- a/crates/ruff_linter/src/rules/pep8_naming/settings.rs
+++ b/crates/ruff_linter/src/rules/pep8_naming/settings.rs
@@ -4,42 +4,24 @@ use std::error::Error;
 use std::fmt;
 use std::fmt::Formatter;
 
-use crate::display_settings;
+use globset::{Glob, GlobSet, GlobSetBuilder};
+
+use ruff_cache::{CacheKey, CacheKeyHasher};
 use ruff_macros::CacheKey;
 
-use crate::settings::types::IdentifierPattern;
+use crate::display_settings;
 
 #[derive(Debug, CacheKey)]
 pub struct Settings {
-    pub ignore_names: Vec<IdentifierPattern>,
+    pub ignore_names: IgnoreNames,
     pub classmethod_decorators: Vec<String>,
     pub staticmethod_decorators: Vec<String>,
 }
 
-pub fn default_ignore_names() -> Vec<String> {
-    vec![
-        "setUp".to_string(),
-        "tearDown".to_string(),
-        "setUpClass".to_string(),
-        "tearDownClass".to_string(),
-        "setUpModule".to_string(),
-        "tearDownModule".to_string(),
-        "asyncSetUp".to_string(),
-        "asyncTearDown".to_string(),
-        "setUpTestData".to_string(),
-        "failureException".to_string(),
-        "longMessage".to_string(),
-        "maxDiff".to_string(),
-    ]
-}
-
 impl Default for Settings {
     fn default() -> Self {
         Self {
-            ignore_names: default_ignore_names()
-                .into_iter()
-                .map(|name| IdentifierPattern::new(&name).unwrap())
-                .collect(),
+            ignore_names: IgnoreNames::Default,
             classmethod_decorators: Vec::new(),
             staticmethod_decorators: Vec::new(),
         }
@@ -52,7 +34,7 @@ impl fmt::Display for Settings {
             formatter = f,
             namespace = "linter.pep8_naming",
             fields = [
-                self.ignore_names | array,
+                self.ignore_names,
                 self.classmethod_decorators | array,
                 self.staticmethod_decorators | array
             ]
@@ -64,7 +46,7 @@ impl fmt::Display for Settings {
 /// Error returned by the [`TryFrom`] implementation of [`Settings`].
 #[derive(Debug)]
 pub enum SettingsError {
-    InvalidIgnoreName(glob::PatternError),
+    InvalidIgnoreName(globset::Error),
 }
 
 impl fmt::Display for SettingsError {
@@ -84,3 +66,152 @@ impl Error for SettingsError {
         }
     }
 }
+
+/// The default names to ignore.
+///
+/// Must be kept in-sync with the `matches!` macro in [`IgnoreNames::matches`].
+static DEFAULTS: &[&str] = &[
+    "setUp",
+    "tearDown",
+    "setUpClass",
+    "tearDownClass",
+    "setUpModule",
+    "tearDownModule",
+    "asyncSetUp",
+    "asyncTearDown",
+    "setUpTestData",
+    "failureException",
+    "longMessage",
+    "maxDiff",
+];
+
+#[derive(Debug)]
+pub enum IgnoreNames {
+    Default,
+    UserProvided {
+        matcher: GlobSet,
+        literals: Vec<String>,
+    },
+}
+
+impl IgnoreNames {
+    /// Create a new [`IgnoreNames`] from the given options.
+    pub fn from_options(
+        ignore_names: Option<Vec<String>>,
+        extend_ignore_names: Option<Vec<String>>,
+    ) -> Result<Self, SettingsError> {
+        // If the user is not customizing the set of ignored names, use the default matcher,
+        // which is hard-coded to avoid expensive regex matching.
+        if ignore_names.is_none() && extend_ignore_names.as_ref().map_or(true, Vec::is_empty) {
+            return Ok(IgnoreNames::Default);
+        }
+
+        let mut builder = GlobSetBuilder::new();
+        let mut literals = Vec::new();
+
+        // Add the ignored names from the `ignore-names` option. If omitted entirely, use the
+        // defaults
+        if let Some(names) = ignore_names {
+            for name in names {
+                builder.add(Glob::new(&name).map_err(SettingsError::InvalidIgnoreName)?);
+                literals.push(name);
+            }
+        } else {
+            for name in DEFAULTS {
+                builder.add(Glob::new(name).unwrap());
+                literals.push((*name).to_string());
+            }
+        }
+
+        // Add the ignored names from the `extend-ignore-names` option.
+        if let Some(names) = extend_ignore_names {
+            for name in names {
+                builder.add(Glob::new(&name).map_err(SettingsError::InvalidIgnoreName)?);
+                literals.push(name);
+            }
+        }
+
+        let matcher = builder.build().map_err(SettingsError::InvalidIgnoreName)?;
+
+        Ok(IgnoreNames::UserProvided { matcher, literals })
+    }
+
+    /// Returns `true` if the given name matches any of the ignored patterns.
+    pub fn matches(&self, name: &str) -> bool {
+        match self {
+            IgnoreNames::Default => matches!(
+                name,
+                "setUp"
+                    | "tearDown"
+                    | "setUpClass"
+                    | "tearDownClass"
+                    | "setUpModule"
+                    | "tearDownModule"
+                    | "asyncSetUp"
+                    | "asyncTearDown"
+                    | "setUpTestData"
+                    | "failureException"
+                    | "longMessage"
+                    | "maxDiff"
+            ),
+            IgnoreNames::UserProvided { matcher, .. } => matcher.is_match(name),
+        }
+    }
+
+    /// Create a new [`IgnoreNames`] from the given patterns.
+    pub fn from_patterns(
+        patterns: impl IntoIterator<Item = String>,
+    ) -> Result<Self, SettingsError> {
+        let mut builder = GlobSetBuilder::new();
+        let mut literals = Vec::new();
+
+        for name in patterns {
+            builder.add(Glob::new(&name).map_err(SettingsError::InvalidIgnoreName)?);
+            literals.push(name);
+        }
+
+        let matcher = builder.build().map_err(SettingsError::InvalidIgnoreName)?;
+
+        Ok(IgnoreNames::UserProvided { matcher, literals })
+    }
+}
+
+impl CacheKey for IgnoreNames {
+    fn cache_key(&self, state: &mut CacheKeyHasher) {
+        match self {
+            IgnoreNames::Default => {
+                "default".cache_key(state);
+            }
+            IgnoreNames::UserProvided {
+                literals: patterns, ..
+            } => {
+                "user-provided".cache_key(state);
+                patterns.cache_key(state);
+            }
+        }
+    }
+}
+
+impl fmt::Display for IgnoreNames {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        match self {
+            IgnoreNames::Default => {
+                writeln!(f, "[")?;
+                for elem in DEFAULTS {
+                    writeln!(f, "\t{elem},")?;
+                }
+                write!(f, "]")?;
+            }
+            IgnoreNames::UserProvided {
+                literals: patterns, ..
+            } => {
+                writeln!(f, "[")?;
+                for elem in patterns {
+                    writeln!(f, "\t{elem},")?;
+                }
+                write!(f, "]")?;
+            }
+        }
+        Ok(())
+    }
+}
diff --git a/crates/ruff_workspace/src/options.rs b/crates/ruff_workspace/src/options.rs
index 03a2d585248a69..734b5434148e75 100644
--- a/crates/ruff_workspace/src/options.rs
+++ b/crates/ruff_workspace/src/options.rs
@@ -15,6 +15,7 @@ use ruff_linter::rules::flake8_quotes::settings::Quote;
 use ruff_linter::rules::flake8_tidy_imports::settings::{ApiBan, Strictness};
 use ruff_linter::rules::isort::settings::RelativeImportsOrder;
 use ruff_linter::rules::isort::{ImportSection, ImportType};
+use ruff_linter::rules::pep8_naming::settings::IgnoreNames;
 use ruff_linter::rules::pydocstyle::settings::Convention;
 use ruff_linter::rules::pylint::settings::ConstantType;
 use ruff_linter::rules::{
@@ -2511,16 +2512,7 @@ impl Pep8NamingOptions {
         self,
     ) -> Result<pep8_naming::settings::Settings, pep8_naming::settings::SettingsError> {
         Ok(pep8_naming::settings::Settings {
-            ignore_names: self
-                .ignore_names
-                .unwrap_or_else(pep8_naming::settings::default_ignore_names)
-                .into_iter()
-                .chain(self.extend_ignore_names.unwrap_or_default())
-                .map(|name| {
-                    IdentifierPattern::new(&name)
-                        .map_err(pep8_naming::settings::SettingsError::InvalidIgnoreName)
-                })
-                .collect::<Result<Vec<_>, pep8_naming::settings::SettingsError>>()?,
+            ignore_names: IgnoreNames::from_options(self.ignore_names, self.extend_ignore_names)?,
             classmethod_decorators: self.classmethod_decorators.unwrap_or_default(),
             staticmethod_decorators: self.staticmethod_decorators.unwrap_or_default(),
         })